This is an old revision of the document!
From PV inverter to energy storage inverter
This short article is prepared for these clients whose main business was PV installation and seeking for change to capture the tide wave of distribution generation tech.
Why energy storage
Nobody will deny that solar PV is one of the most acceptable clean energy until now. Unlike wind turbines, in a solar PV system, everything is static, bringing high robustness.
Once upon a time the high price of PV panels is an obstacle but thanks to the Chinese PV panel manufacturers' competitions, the price is much cheaper now.
The only problem is the sun.
The electric companies are tied of net metering. there are
Difference between PV + ESS and PV
A grid tied PV system is a passive system, before CA rule 21 and HECO rule 14H, the PV system